$60+ Cheap flights from Ontario (ONT) to Wisconsin
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MKE
May 21 — May 281
Round-trip
1 adult, Economy
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Cheapest flights from Ontario to WisconsinExplore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 21, 2026.
Explore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 21, 2026.
This Booking.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:50 am
ONT
- MSP
1 stop7h 54m
Frontier
Wed 5/1310:14 am
MSP
- ONT
1 stop15h 35m
Frontier
Deal found 4/20![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:50 am
ONT
- MSP
1 stop20h 29m
Frontier
Tue 5/129:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/21![Frontier logo]()
$167
This CheapOair deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:00 am
ONT
- MSP
1 stop12h 44m
Frontier
Sat 5/239:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/18![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:50 am
ONT
- MSP
1 stop20h 29m
Frontier
Tue 5/129:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/21![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:50 am
ONT
- MSP
1 stop20h 29m
Frontier
Mon 5/119:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/21![Frontier logo]()
$178
This CheapOair deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Mon 5/119:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/19![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/283:30 pm
ONT
- MSP
2 stops39h 49m
Frontier
Mon 6/1510:15 pm
MSP
- ONT
1 stop27h 34m
Frontier
Deal found 4/16![Frontier logo]()
$189
This CheapOair deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:50 am
ONT
- MSP
1 stop20h 29m
Frontier
Sat 5/99:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/16![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Tue 5/129:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/21![Frontier logo]()
$194
This CheapOair deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Wed 5/279:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/17![Frontier logo]()
$196
This Booking.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Sat 5/239:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/20![Frontier logo]()
$198
This Frontier deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:50 am
ONT
- MSN
1 stop6h 24m
Frontier
Sat 6/67:59 pm
MSN
- ONT
1 stop5h 50m
Frontier
Deal found 4/16![Frontier logo]()
$210
Best flights from Ontario to WisconsinDiscover carefully curated flight deals from Ontario to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 21, 2026.
Discover carefully curated flight deals from Ontario to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 21, 2026.
This Frontier deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/610:50 am
ONT
- MSN
1 stop6h 24m
Frontier
Sun 6/77:59 pm
MSN
- ONT
1 stop5h 50m
Frontier
Deal found 4/20![Frontier logo]()
$230
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:29 pm
ONT
- MSP
1 stop5h 28m
Delta
Mon 6/88:20 pm
MSP
- ONT
1 stop5h 25m
Delta
Deal found 4/21![Delta logo]()
$331
This American Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/52:18 pm
ONT
- ATW
1 stop6h 25m
American Airlines
Tue 6/92:03 pm
ATW
- ONT
2 stops9h 54m
American Airlines
Deal found 4/21![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:37 am
ONT
- ATW
2 stops10h 28m
United Airlines
Sun 5/103:45 pm
ATW
- ONT
1 stop8h 50m
United Airlines
Deal found 4/16![United Airlines logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:41 pm
ONT
- ORD
1 stop8h 39m
Alaska Airlines
Wed 6/39:00 am
ORD
- ONT
2 stops12h 08m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$418
This Southwest deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/133:00 pm
ONT
- MKE
1 stop7h 20m
Southwest
Mon 6/156:30 pm
MKE
- ONT
1 stop6h 05m
Southwest
Deal found 4/17![Southwest logo]()
$477
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:29 pm
ONT
- MKE
1 stop6h 04m
Delta
Sat 5/166:45 am
MKE
- ONT
1 stop7h 34m
Delta
Deal found 4/16![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:59 pm
ONT
- ORD
1 stop9h 21m
United Airlines
Thu 5/148:09 pm
ORD
- ONT
Nonstop4h 26m
United Airlines
Deal found 4/16![United Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:02 pm
ONT
- GRB
2 stops11h 02m
American Airlines
Tue 10/69:52 am
GRB
- ONT
2 stops11h 05m
American Airlines
Deal found 4/19![American Airlines logo]()
$396
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:00 pm
ONT
- MKE
1 stop9h 08m
Delta
Thu 5/145:23 am
MKE
- ONT
1 stop7h 34m
Delta
Deal found 4/16![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/171:50 pm
ONT
- ORD
1 stop9h 09m
United Airlines
Tue 6/238:13 pm
ORD
- ONT
Nonstop4h 33m
United Airlines
Deal found 4/16![United Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:04 pm
ONT
- MKE
1 stop9h 55m
Alaska Airlines
Tue 5/264:40 pm
MKE
- ONT
1 stop9h 18m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/131:30 pm
ONT
- MSP
1 stop7h 17m
United Airlines
Tue 5/195:44 pm
MSP
- ONT
1 stop7h 15m
United Airlines
Deal found 4/20![United Airlines logo]()
$408
This Delta deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:15 pm
ONT
- MSN
2 stops13h 45m
Delta
Tue 5/511:19 am
MSN
- ONT
1 stop9h 14m
Delta
Deal found 4/17![Delta logo]()
$408
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/238:30 am
ONT
- MSP
2 stops7h 50m
Southwest
Wed 7/86:00 am
MSP
- ONT
2 stops7h 30m
Southwest
Deal found 4/20![Southwest logo]()
$497
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:05 pm
ONT
- MSP
1 stop7h 54m
Alaska Airlines
Fri 8/217:02 am
MSP
- ONT
1 stop9h 09m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$457
This American Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:19 pm
ONT
- MSN
2 stops9h 35m
American Airlines
Mon 5/186:02 pm
MSN
- ONT
1 stop5h 57m
American Airlines
Deal found 4/21![American Airlines logo]()
$500
This Southwest deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/168:00 am
ONT
- MSP
2 stops13h 15m
Southwest
Tue 7/216:00 am
MSP
- ONT
2 stops7h 30m
Southwest
Deal found 4/19![Southwest logo]()
$503
This United Airlines deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:00 am
ONT
- MSN
1 stop7h 16m
United Airlines
Sat 5/233:50 pm
MSN
- ONT
1 stop9h 01m
United Airlines
Deal found 4/18![United Airlines logo]()
$422
This Alaska Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/152:05 pm
ONT
- MSP
1 stop7h 54m
Alaska Airlines
Wed 7/226:17 pm
MSP
- ONT
1 stop7h 35m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:07 pm
ONT
- MKE
1 stop9h 52m
Delta
Sun 5/246:45 am
MKE
- ONT
1 stop7h 34m
Delta
Deal found 4/17![Delta logo]()
$437
This Southwest deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:30 am
ONT
- MSP
2 stops7h 50m
Southwest
Mon 6/155:50 am
MSP
- ONT
2 stops8h 15m
Southwest
Deal found 4/19![Southwest logo]()
$507
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:10 am
ONT
- MSP
1 stop7h 12m
Alaska Airlines
Fri 9/185:18 pm
MSP
- ONT
1 stop8h 06m
Alaska Airlines
Deal found 4/20![Alaska Airlines logo]()
$467
This American Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:15 am
ONT
- LSE
2 stops15h 03m
American Airlines
Mon 8/316:37 pm
LSE
- ONT
2 stops16h 57m
American Airlines
Deal found 4/16![American Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/191:40 pm
ONT
- MKE
1 stop5h 47m
United Airlines
Wed 5/208:15 am
MKE
- ONT
1 stop6h 23m
United Airlines
Deal found 4/20![United Airlines logo]()
$435
This Southwest deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/145:15 am
ONT
- MSP
2 stops8h 25m
Southwest
Sat 6/205:55 am
MSP
- ONT
2 stops8h 50m
Southwest
Deal found 4/18![Southwest logo]()
$507
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/159:50 am
ONT
- MSN
2 stops9h 37m
Delta
Sun 5/176:29 pm
MSN
- ONT
2 stops7h 05m
Delta
Deal found 4/16![Delta logo]()
$464
This Alaska Airlines deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:10 am
ONT
- MSP
1 stop7h 12m
Alaska Airlines
Mon 8/315:18 pm
MSP
- ONT
1 stop8h 06m
Alaska Airlines
Deal found 4/18![Alaska Airlines logo]()
$467
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:50 pm
ONT
- MSP
2 stops8h 09m
United Airlines
Fri 5/295:45 am
MSP
- ONT
2 stops8h 27m
United Airlines
Deal found 4/16![United Airlines logo]()
$453
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:50 am
ONT
- CWA
2 stops9h 08m
Delta
Wed 5/204:32 pm
CWA
- ONT
2 stops9h 02m
Delta
Deal found 4/16![Delta logo]()
$476
Last-minute flights from Ontario to WisconsinDiscover last-minute flight deals from Ontario to Wisconsin. Data last updated April 21, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Wisconsin. Data last updated April 21, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Tue 5/129:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/21![Frontier logo]()
$194
This CheapOair deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:50 am
ONT
- MSP
1 stop20h 29m
Frontier
Sat 5/99:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/16![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:50 am
ONT
- MSP
1 stop20h 29m
Frontier
Tue 5/129:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/21![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:50 am
ONT
- MSP
1 stop20h 29m
Frontier
Mon 5/119:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/21![Frontier logo]()
$178
This CheapOair deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Mon 5/119:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/19![Frontier logo]()
$180
This CheapOair deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:00 am
ONT
- MSP
1 stop12h 44m
Frontier
Sat 5/239:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/18![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:50 am
ONT
- MSP
1 stop20h 29m
Frontier
Tue 5/129:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/21![Frontier logo]()
$176
This Booking.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:50 am
ONT
- MSP
1 stop7h 54m
Frontier
Wed 5/1310:14 am
MSP
- ONT
1 stop15h 35m
Frontier
Deal found 4/20![Frontier logo]()
$162
This CheapOair deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Wed 5/279:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/17![Frontier logo]()
$196
This Booking.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Sat 5/239:39 pm
MSP
- ONT
1 stop14h 26m
Frontier
Deal found 4/20![Frontier logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/283:30 pm
ONT
- MSP
2 stops39h 49m
Frontier
Mon 6/1510:15 pm
MSP
- ONT
1 stop27h 34m
Frontier
Deal found 4/16![Frontier logo]()
$189
This Frontier deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:50 am
ONT
- MSN
1 stop6h 24m
Frontier
Sat 6/67:59 pm
MSN
- ONT
1 stop5h 50m
Frontier
Deal found 4/16![Frontier logo]()
$210
One-way flights from Ontario to WisconsinSearch for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Data last updated April 21, 2026.
Search for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Data last updated April 21, 2026.
This Trip.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:50 am
ONT
- ORD
1 stop7h 42m
Frontier
Deal found 4/18![Frontier logo]()
$60
This Trip.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 am
ONT
- MSP
1 stop12h 44m
Frontier
Deal found 4/18![Frontier logo]()
$73
This Trip.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:00 am
ONT
- ORD
1 stop12h 32m
Frontier
Deal found 4/17![Frontier logo]()
$77
This Super.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Deal found 4/17![Frontier logo]()
$85
This Super.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:06 pm
ONT
- ORD
1 stop24h 55m
Frontier
Deal found 4/17![Frontier logo]()
$85
This Booking.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Deal found 4/19![Frontier logo]()
$86
This CheapOair deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:06 pm
ONT
- ORD
1 stop24h 55m
Frontier
Deal found 4/17![Frontier logo]()
$86
This Jetabroad deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:06 pm
ONT
- ORD
1 stop24h 55m
Frontier
Deal found 4/21![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Deal found 4/20![Frontier logo]()
$92
This Super.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Deal found 4/16![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:59 am
ONT
- ORD
1 stop6h 46m
Frontier
Deal found 4/19![Frontier logo]()
$99
This CheapOair deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:50 am
ONT
- MSP
1 stop7h 54m
Frontier
Deal found 4/20![Frontier logo]()
$100
Find flight deals from Ontario to Wisconsin
Keep the following information in mind while searching for Ontario to Wisconsin flight deals. Data was last updated April 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $153 (Kiwi.com) |
One-way from | $60 (Trip.com) |
Popular in | February |
Cheapest in | August |
Average price | $447 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Wisconsin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 21, 2026.
Use the filters below to find and compare flights from Ontario to Wisconsin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioMadison
ONT - MSN
ONTMSN
Ontario
Sat 6/6
10:50 am-7:14 pm
1 stop6h 24m
Madison Truax Field
Sun 6/7
7:59 pm-11:49 pm
1 stop5h 50m
$230
Quickest round-trip
OntarioMinneapolis
ONT - MSP
ONTMSP
Ontario
Tue 6/2
1:29 pm-8:57 pm
1 stop5h 28m
Minneapolis St Paul
Mon 6/8
8:20 pm-11:45 pm
1 stop5h 25m
$331
OntarioAppleton
ONT - ATW
ONTATW
Ontario
Fri 6/5
2:18 pm-10:43 pm
1 stop6h 25m
Appleton Intl
Tue 6/9
2:03 pm-9:57 pm
2 stops9h 54m
$374
OntarioAppleton
ONT - ATW
ONTATW
Ontario
Fri 5/8
10:37 am-11:05 pm
2 stops10h 28m
Appleton Intl
Sun 5/10
3:45 pm-10:35 pm
1 stop8h 50m
$374
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Tue 5/12
1:29 pm-9:33 pm
1 stop6h 04m
Milwaukee-Mitchell
Sat 5/16
6:45 am-12:19 pm
1 stop7h 34m
$387
OntarioChicago
ONT - ORD
ONTORD
Ontario
Mon 5/11
6:59 pm-6:20 am
1 stop9h 21m
Chicago O'Hare Intl
Thu 5/14
8:09 pm-10:35 pm
Nonstop4h 26m
$394
OntarioGreen Bay
ONT - GRB
ONTGRB
Ontario
Thu 9/24
8:02 pm-9:04 am
2 stops11h 02m
Green Bay Austin-Straubel
Tue 10/6
9:52 am-6:57 pm
2 stops11h 05m
$396
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Mon 5/11
10:00 pm-9:08 am
1 stop9h 08m
Milwaukee-Mitchell
Thu 5/14
5:23 am-10:57 am
1 stop7h 34m
$399
OntarioChicago
ONT - ORD
ONTORD
Ontario
Wed 6/17
1:50 pm-12:59 am
1 stop9h 09m
Chicago O'Hare Intl
Tue 6/23
8:13 pm-10:46 pm
Nonstop4h 33m
$399
OntarioMinneapolis
ONT - MSP
ONTMSP
Ontario
Wed 5/13
1:30 pm-10:47 pm
1 stop7h 17m
Minneapolis St Paul
Tue 5/19
5:44 pm-10:59 pm
1 stop7h 15m
$408
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Wisconsin
Have a flexible travel schedule? Discover the best time to fly to Wisconsin from Ontario with our price prediction graph.
ONT-MSP
ONT-MSN
ONT-ORD
ONT-MKE
ONT-ATW
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Wisconsin
ONT-USWI
ONT-MSP
ONT-MSN
ONT-ORD
ONT-MKE
What is the cheapest month to book a flight from Ontario to Wisconsin?
Currently, July is the cheapest month in which you can book a flight from Ontario to Wisconsin (average of $122). Flying from Ontario to Wisconsin in February is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to Wisconsin?
Reviews of airlines servicing Wisconsin
Get insights into the airlines that provide service to Wisconsin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Wisconsin. Reviews last updated April 21, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Ontario to Wisconsin. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Wisconsin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Wisconsin
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Complete your trip
Complete your trip to Wisconsin by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Wisconsin by cabin class
Find flights from Ontario to Wisconsin, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Wisconsin flights
Browse other Ontario and Wisconsin flight options. Last updated on April 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Wisconsin flights
Consider these flights traveling from Ontario to Wisconsin.
Top 4 airlines flying from Ontario to Wisconsin
Discover the top 4 airlines that operate flights from Ontario to Wisconsin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$253 | Average$452 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$276 | Average$626 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$309 | Average$486 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$326 | Average$427 | FlexibilityNo cancel fee | On-time63% |